Okay, maybe I'm going to go a bit off the page here in suggesting that Severus Snape is the coolest HP character. I love this topic btw! I just think that Snape's "cool" quotient is best captured in the duality of his character... the fact that for a long time it was difficult to figure out where he stood. Gred and Forge were definitely cool in a school cool sense to me, but as far as a lifestyle cool, it's Severus Snape all the way. As if the mystery surrounding Snape weren't enough to clinch this for him IMO, then the fact that he lived an unrequited love (He's like Romeo and Juliet to the enth degree) takes the cake for me.
thanks for saying you love this topic ! and yes, i quite agree. aspecially when snape was in school as well.....the coolest people for me, are people who never tries to BE cool,i guess.